[SOLVED] Extract file names, with a certain extension, and their sizes in a txt file

Issue

I have a directory that looks like this

dir 
 |--folder1
 |     |--- subfolder1
 |     |--- ...
 |     |--- subfolder100
 |
 |--folder2 
      |--- subfolder1
      |--- ...
      |--- subfolder100

Each folder and subfolder contains among others files with the extension ".fq.gz"

I want to list all files with a .fq.gz question , and copy their filenames and file size in a .txt file.

I want something like this.

While I know how to copy the file names

ls -R | grep "\.fq.gz" > ${destination}output.txt

it becomes rather complicated to add the file size. I am taking an error that the file does not exist

I want something like this

less data.txt 

file1.fq.gz  43434343
file2.fq.gz  43454854
....

Solution

With GNU find:

find . -name '*.fq.gz' -printf '%f %s\n'

Answered By - oguz ismail

Answer Checked By - David Marino (WPSolving Volunteer)